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/*
*
* Connection Manager
*
*
* Copyright (C) 2017 Samsung Electronics Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "connman.h"
#include <connman/mesh-netlink.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <netlink/msg.h>
#include <netlink/attr.h>
#include <netlink/netlink.h>
static int seq_check_cb(struct nl_msg *msg, void *arg)
{
DBG("");
return NL_OK;
}
static int finish_cb(struct nl_msg *msg, void *arg)
{
int *ret = arg;
DBG("");
*ret = 0;
return NL_SKIP;
}
static int ack_cb(struct nl_msg *msg, void *arg)
{
int *ret = arg;
DBG("");
*ret = 0;
return NL_STOP;
}
static int valid_cb(struct nl_msg *msg, void *arg)
{
DBG("");
return NL_SKIP;
}
static int error_cb(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg)
{
int *ret = arg;
*ret = err->error;
DBG("error %d", *ret);
return NL_STOP;
}
int __connman_mesh_netlink_set_gate_announce(mesh_nl80211_global *global,
int mesh_if_index, bool gate_announce, int hwmp_rootmode)
{
struct nl_msg *msg;
struct nlattr *container;
struct nl_cb *cb;
int err = -1;
msg = nlmsg_alloc();
if (!msg)
return -1;
cb = nl_cb_clone(global->cb);
if (!cb)
goto out;
genlmsg_put(msg, 0, 0, global->id, 0, 0, NL80211_CMD_SET_MESH_CONFIG, 0);
nla_put_u32(msg, NL80211_ATTR_IFINDEX, mesh_if_index);
container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, hwmp_rootmode);
nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, gate_announce);
nla_nest_end(msg, container);
err = nl_send_auto_complete(global->nl_socket, msg);
if (err < 0) {
DBG("Failed to send msg");
goto out;
}
err = 1;
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_cb, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_cb, &err);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, valid_cb, &err);
nl_cb_err(cb, NL_CB_CUSTOM, error_cb, &err);
while (err > 0) {
int res = nl_recvmsgs(global->nl_socket, cb);
if (res < 0)
DBG("nl_recvmsgs failed: %d", res);
}
out:
nl_cb_put(cb);
nlmsg_free(msg);
return err;
}
mesh_nl80211_global *__connman_mesh_nl80211_global_init(void)
{
mesh_nl80211_global *global;
DBG("");
global = g_malloc0(sizeof(mesh_nl80211_global));
global->nl_socket = nl_socket_alloc();
if (!global->nl_socket) {
DBG("Failed to allocate netlink socket");
g_free(global);
return NULL;
}
if (genl_connect(global->nl_socket)) {
DBG("Failed to connect to generic netlink");
nl_socket_free(global->nl_socket);
g_free(global);
return NULL;
}
nl_socket_set_buffer_size(global->nl_socket, 8192, 8192);
global->id = genl_ctrl_resolve(global->nl_socket, "nl80211");
if (global->id < 0) {
DBG("nl80211 generic netlink not found");
nl_socket_free(global->nl_socket);
g_free(global);
return NULL;
}
global->cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!global->cb) {
DBG("Failed to allocate netwlink callbacks");
nl_socket_free(global->nl_socket);
g_free(global);
return NULL;
}
nl_cb_set(global->cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, seq_check_cb, NULL);
return global;
}
void __connman_mesh_nl80211_global_deinit(mesh_nl80211_global *global)
{
DBG("");
nl_cb_put(global->cb);
nl_socket_free(global->nl_socket);
g_free(global);
}
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